Knowing when kumquats are in season makes it easier to find flavorful fruit at the store and helps gardeners determine the right time to harvest from their own trees. The exact timing depends on the variety, climate, and growing conditions.
When Are Kumquats in Season?
In many parts of the United States, kumquats are generally in season from late fall through winter and into early spring.
The main harvest period often falls between November and March, although the timing can vary considerably. In warmer areas, fruit may remain on the tree for longer, while cooler climates may have a shorter harvest window.
Kumquat trees prefer warm conditions and can produce fruit during the cooler part of the year compared with many other citrus trees. This makes fresh kumquats especially common during the winter months.
If you are shopping for kumquat fruit, winter is often a good time to look for fresh, ripe fruit.
When Do Kumquat Trees Produce Fruit?
Kumquat trees typically bloom during warm weather, with flowering often occurring in spring or summer depending on the climate.
After flowering and pollination, the small green fruits gradually develop over the following months. Kumquats are relatively slow to mature compared with some other citrus fruits.
As the fruit develops, it changes from green to its mature color, usually orange or yellow-orange depending on the variety.
Because the fruit takes time to mature, flowers that appear during warmer months can eventually produce ripe kumquats during late fall and winter.
When Is the Best Time to Harvest Kumquats?
The best time to harvest kumquats is when the fruit has reached its mature color and comes away from the tree easily.
A ripe kumquat should generally:
- Have a bright orange or yellow-orange color
- Feel firm but slightly yielding
- Have smooth, healthy-looking skin
- Develop a noticeable citrus aroma
- Taste sweet and pleasantly tart
Do not rely on color alone. Different varieties can have different mature colors, and environmental conditions can affect how quickly the fruit changes appearance.
If you are growing a kumquat tree for the first time, tasting one fruit is one of the easiest ways to determine whether the rest of the crop is ready.
Can Kumquats Ripen on the Tree?
Yes. Kumquats can remain on the tree after they have developed their mature color.
In fact, allowing fruit to remain on the tree can help you harvest it when the flavor is at its best. However, ripe fruit should not be left indefinitely because birds, insects, weather, and other problems can damage the crop.
One advantage of kumquats is that the fruit can often remain on the tree for some time without immediately becoming unusable.
For home gardeners, this means you can harvest smaller amounts as needed rather than picking the entire crop at once.
Do Kumquats Continue to Ripen After Picking?
Kumquats do not ripen in the same way as fruits such as bananas or pears.
For the best flavor, it is generally better to harvest kumquats when they are already mature and have developed their characteristic color and flavor.
If a fruit is picked too early, allowing it to sit at room temperature may soften it, but this does not necessarily mean it will develop the same sweetness and flavor as a fruit that matured properly on the tree.
When harvesting from your own tree, wait until the fruit looks mature and tastes good before picking larger quantities.
Kumquat Season by Climate
The harvest season can vary depending on where the tree is growing.
Warm climates
In warm regions, kumquat trees can have a relatively long fruiting period. Fruit may begin ripening in late fall and continue through winter.
Some fruit can remain on the tree into early spring if temperatures and growing conditions remain favorable.
Mild climates
Gardeners in areas with mild winters may also enjoy a long harvest season. The main difference is that cold weather is less likely to interrupt fruit development.
Cooler climates
Kumquats can be grown in containers in cooler areas, but the tree may need protection from freezing temperatures. Container-grown trees can be moved to a protected location during cold weather.
Because climate has such a strong effect on flowering and fruit development, there is no single harvest date that applies to every kumquat tree.
How to Harvest Kumquats
Harvesting kumquats is simple.
Wait until the fruit has reached its mature color and appears healthy. Then gently hold the fruit and twist it or use clean pruning scissors to cut the stem.
Avoid pulling forcefully because you can damage the fruit or the branch.
It is better to harvest carefully in small batches than to shake the tree or remove large numbers of fruits at once.
After harvesting, place undamaged fruit in a clean container and keep it away from bruised or spoiled fruit.
How Long Is the Kumquat Harvest Season?
A healthy kumquat tree can provide fruit for several weeks or even months.
The length of the harvest depends on the tree’s age, variety, weather, pollination, and overall growing conditions. Trees receiving adequate sunlight, water, and nutrients are more likely to produce a healthy crop.
Another factor is how quickly you harvest. Since mature kumquats can remain on the tree, gardeners may spread the harvest over a longer period.
Instead of picking everything at once, you can harvest ripe fruit as you need it.
Why Are Kumquats Commonly Associated With Winter?
Kumquats have a reputation as a winter citrus because their main harvest period often overlaps with the cooler months.
This is somewhat unusual because many familiar citrus fruits are harvested at different times throughout the year.
The bright orange color of kumquats can also make them a welcome sight during winter. For gardeners in suitable climates, a tree can provide fresh fruit when many other backyard crops have finished producing.
How to Get the Best Kumquat Harvest
If you grow your own tree, several basic practices can encourage better fruit production.
Give the tree plenty of sunlight and use well-draining soil. Water consistently, especially during dry periods, while avoiding constantly waterlogged soil.
Regularly inspect the tree for pests and signs of disease. Pruning should be limited to removing dead, damaged, or poorly positioned growth unless you have a specific reason for more extensive pruning.
Most importantly, give the tree time. Young kumquat trees may need several years before they produce a substantial crop.
Final Thoughts
Kumquats are typically in season from late fall through winter and into early spring, with November through March being a useful general guide for many U.S. growing regions.
However, the exact harvest period depends on the variety and local climate. For home gardeners, the best approach is to watch the fruit rather than follow a fixed calendar. When kumquats reach their mature color, develop good flavor, and begin coming away from the tree easily, they are usually ready to harvest.
Once you have ripe fruit, you can enjoy it fresh or use it in salads, desserts, drinks, and other recipes.